OS 10.4 - iTunes iPhoto iPod sync

Please help. My wife has a white macbook using osx tiger. I got her a video ipod. She synced her ipod, and now has her itunes library and iphoto library on her ipod. The trouble is now her itunes and iphoto are both empty after the sync. Everything made it onto her ipod, but now when she opened both her itunes and her iphoto on her macbook, they are both empty. After doing some digging in her computer files, I found her music and her photos on her computer still, so they weren't deleted, but they no longer show up in itunes or iphoto, any suggestions?